Improvement in tile-machines



PATENT OEEICE.

GEORGE CLAYTON, OF CLEVELAND, OHIO.

IMPROVEMENT IN TILE-MACHINES.

Specification forming part of Letters Patent No. 117,983, dated August15, 1871 antedated August 11, 1871.

To all whom it may concern:

Be it known that I, GEORGE CLAYTON, of Cleveland, in the county ofCuyahoga and State of Ohio, have invented certain Improvements inTile-Machines, of which the following is a specification: f

The first part of my invention relates to the manner of constructing thebottom of the tub, providing it with a dome in the central part, and inproviding an auxiliary space, whereby a larger throat is obtained,enabling the clay`to be more easily and thoroughly fed to the dies;also, in combination with the above mentioned, providing an auxiliaryplunger operated by a crank and gearing from the top of the machine, theobject of which is to close the throat while the main plunger is movingforward. The second part of my invention relates to thecombination,.with short arms on the lower end of the shaft and rotatin gwith it, of friction-rollers arranged in the frame-work of the mainplunger, the object bein g to obtain increased power, and making themachine work easier; also, in combination with the above, the trap-lidfor covering' the slot in the frame of the main'plunger when it iscarried forward and the slot comes under the throat. The third part ofmy invention relates to the construction and arrangement of thegear-wheels on the top of the machine, whereby the auxiliary plungerwhich covers the throat shall be operated alternately to rise and fallat suitable intervals. rIhe fourth part of my invention relates to theconstruction of the dies for tile, whereby double tile can be 1n ade,andalso in providing them with an inside ilange, enabling the clay to passmore easily on all sides alike. The iifth part of my invention relatesto an adjustable box or bearing for the journals of one of the rollersfor the endless belt in one end of the conveyer-frame.

Figure 1 is a vertical section of a machine embodying my invention. Fig.2 is a plan of the main plunger and devices for operating it. Fig. 3 isa plan of the bottom of the tub, showing the dome and throat. Fig. 4 isa detached view of the gear-wheels. Fig'. 5 is a detached view of a die.Fig. 6 is a portion of endless-belt conveyerframe, showing theadjustable bearing.

A is the tub of a tile-machine, which sits on a frame or box, B, inwhich is placed the main plunger O, said plunger being operated by theupright shaftJ D. The lower end of the shaft is set in a suitable stepinthe bottom of the box B. Across the top of the tub A is placed acrosspiece, E, through which the top of the shaft D passes. Upon theshaft D are the mud-wings d d for grinding and mixing the clay. Thebottom ofthe tub A has a dome, A, the object of which is to provide anannular space next to the sides of the tub, by which the clay shall bemore easily conveyed to the circumference and into the throat leading tothe dies. The under side of the dome also gives space for the trap-lid gto rise. In the front side and at the bottom of the tub is provided anauxiliary space, F, by which the throat is extended to give it amplecapacity for feeding the dies. In the space F is placed a plunger, h,operated by a pitman, t, connected with a crank, j, on a small shaft, k,on which is a pinion, l, operated by a gear-wheel, m, secured to the topof the main shaft D. The gear-wheel m is made with a wide iiange, whichslides over the pinion Zto prevent its revolving, except at the twoopposite spaces cut out of the flange, at which spaces, on the underside ofthe wheel m, are segments of gearing sufficient to cause thepinion to turn half round, the pinion only having gearing on twoopposite sides, and having four projections, l', which serve to steadythe crank, to keep it firm, and hold the plunger h in position. Thelower end of the upright shaft D is provided with two sets of shortarms, n and n', the upper ones n for carrying the plunger backward, andthe lower ones fn for carrying it forward. The plunger-frame is dividedmost of its length into two parts, so that it can pass back of the shaftD. On one side of the frame are arranged two friction-rollers, o o,which are operated on by the upper arms n a, and in the other side ofthe frame are two other rollers, o o,which are operated on by the lowerarms n af. By this means an increase of power is applied to the plungerand makes it work much easier. The position of the mud-wing' P is suchthat, when it passes over the throat, the plunger h is up7 and then, assoon as it has passed by the throat, the plunger h is carried down, andthe throat is mostly covered when the main plunger moves forward andforces the clay through the dies. The little trap-lid g drops down andcovers the slot in the plunger c so that no clay can get into the slotwhen it is under the part of the throat that is not covered by theplunger h. The dies, Fig.

5, are made with one or more centers, q. With two centers like the onerepresented a double tile is niade, which possesses greater strength anddouble capacity Without using as much clay as to make two completetiles. On the inside of the die is fixed a ilange, r, which passes Iallaround, which has the advantage of guiding and conducting the clay moresmoothly and easily through the die on all sides alike. On theconveyer-franie are placed adjustable bearings, which consist of a stripof iron, s, having a slot in each. end, by which means it may beadjusted by being slipped backward or forward on the screws which holdit, the object of which is to adjust the roller so as to make the beltrun true.

I claim as my inventionl. The combination of the tub A, dome A',extension F, and auxiliary plunger h with the pitinan 1', crank j,shaftk, and gear-Wheels lm provided with open spaces and the projections1.', substantially as and for the purpose set forth.

2. rlhe combination of the tub A, dome A', eX- tension F, auxiliaryplunger h, the tl1roat,thc base B, and the main plunger C provided withthe gate g, all substantially as set forth.

3. The double die, Fig. 5, provided with the continuous flange o' andthe centers q q, having the arms bent as shown, as and for the purposedescribed.

Witnesses: GEORGE CLAYTON.

Gno. W. TrBBrT'rs, W. H. CROWELL.

